33 lines
863 B
Rust
33 lines
863 B
Rust
// We want to control preemption here.
|
|
//@compile-flags: -Zmiri-preemption-rate=0
|
|
|
|
use std::sync::atomic::AtomicUsize;
|
|
use std::sync::atomic::Ordering;
|
|
use std::thread::spawn;
|
|
|
|
#[derive(Copy, Clone)]
|
|
struct EvilSend<T>(pub T);
|
|
|
|
unsafe impl<T> Send for EvilSend<T> {}
|
|
unsafe impl<T> Sync for EvilSend<T> {}
|
|
|
|
pub fn main() {
|
|
let mut a = AtomicUsize::new(0);
|
|
let b = &mut a as *mut AtomicUsize;
|
|
let c = EvilSend(b);
|
|
unsafe {
|
|
let j1 = spawn(move || {
|
|
let atomic_ref = &mut *c.0;
|
|
atomic_ref.store(32, Ordering::SeqCst)
|
|
});
|
|
|
|
let j2 = spawn(move || {
|
|
let atomic_ref = &mut *c.0;
|
|
*atomic_ref.get_mut() //~ ERROR: Data race detected between Read on thread `<unnamed>` and Atomic Store on thread `<unnamed>`
|
|
});
|
|
|
|
j1.join().unwrap();
|
|
j2.join().unwrap();
|
|
}
|
|
}
|